Blower housing pressurization structure

ABSTRACT

A blower housing pressurization structure includes a power seat, a first joint, two half-shells, an air outlet, two air inlets, a second joint, a coupling key, and at least a guiding protrusion. Each half-shell is arranged on each side of the power seat. Each half-shell includes an outer side surface, an inner side surface, a first combination section and a second combination section. Each first combination section has a chamber for accommodating a wind impeller being positioned at each side of the power seat. Each second combination section is formed an air outlet for communicating to each chamber. The two air inlets are formed by an aperture penetrating each half-shell, and each air inlet is communicated to each chamber. At least one guiding protrusion is arranged on the inner side surface of each first combination section and corresponds to the wind impeller.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a blower housing structure, in particular referring to a blower housing pressurization structure.

2. Description of Related Art

Generally, a conventional blower structure mainly includes a housing and a motor. Two opposite sides of the housing are respectively possessed an air suction port, and the other side of the housing is possessed an air outlet. The motor is assembled in the middle section of the housing, and two sides of the motor corresponding to the suction port are respectively provided with a wind impeller. The motor drives each wind impeller to draw wind and output it to the air outlet. In addition, for the convenience of assembly, a housing is designed with two half-shells, a motor and two wind impellers are assembled on a base, and two half-shells are respectively further assembled on two sides of the base to respectively accommodate the two wind impellers, among which, most of the two half-shells are assembled in such a way that there are several first apertures through the side of the half-shell with the air suction port and the base is possessed several second apertures being respectively corresponding to the first apertures. The first and second apertures are connected by screws or rivets.

Basically, in order to improve the working efficiency of the blower, apart from using a high horsepower motor, improving the structure of the impeller is also a way to improve the working efficiency of the blower. However, the aforementioned two methods are costly, and it is not easy to improve the structure of the impeller, so how to further improve the structure of a shell to enhance the efficiency of the blower is also the direction of the industry's efforts.

Consequently, because of the technical defects of described above, the applicant keeps on carving unflaggingly through wholehearted experience and research to develop the present invention, which can effectively improve the defects described above.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a blower housing pressurization structure, which has a better economic scale to improve the working efficiency of the blower.

The secondary objective of the present invention is to provide a blower housing pressurization structure, which has the characteristics of the pressurization structure mounting and assembly structure.

Consequently, in order to achieve the foregoing objective, the present invention provides a blower housing pressurization structure comprising at least a power seat, a first joint, two half-shells, an air outlet, two air inlets, a second joint, a coupling key, and at least one guiding protrusion. The middle section of the power seat is formed to house a motor. Two opposite sides of the motor respectively extend outwards with a rotating shaft for setting a wind impeller. The first joint is arranged on the power seat. Each of the half-shells is arranged on the power seat. Each half-shell includes at least an outer side surface, an inner side surface, a first combination section extending from a part of the outer side surface toward the power seat, and a second combination section extending from another part of the outer side surface. Each of the first combination sections is respectively assembled and arranged on the power seat and thus has a chamber for accommodating the wind impeller; each of the second combination sections is arranged correspondingly to each other to form an air outlet communicated to each of the chambers. The two air inlets are formed by an aperture penetrating each half-shell, and each air inlet is communicated to each chamber. The second joint is arranged on the outer side surface of each half-shell. The coupling key is arranged between the first joint and the second joint for connecting the half shells to the power seat. At least one guiding protrusion is arranged on the inner side surface of each first combination section and corresponds to the wind impeller.

Hereinafter, a preferred embodiment of the present invention is cited, and further detailed description is given as follows in conjunction with the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

FIG. 2 is an exploded perspective view of the preferred embodiment of the present invention;

FIG. 3 is a cross-sectional view of FIG. 1 in the direction 3-3; and

FIG. 4 is an exploded perspective view of the preferred embodiment of the present invention equipped with a motor and two wind impellers.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Now, the present invention will be described more specifically with reference to the following embodiments. It is to be noted that the following descriptions of preferred embodiments of this invention are presented herein for purpose of illustration and description only; it is not intended to be exhaustive or to be limited to the precise form disclosed.

With reference to FIG. 1 through FIG. 4, the blower housing pressurization structure disclosed in the present invention comprises at least a power seat 12, a first joint 13, two half-shells 14, an air outlet 15, two air inlets 16, a second joint 17, a coupling key 18, and at least one guiding protrusion 19.

The power seat 12 includes at least two opposite side surfaces 22. A through hole 26 is provided between the middle sections of the two side surfaces 22 to accommodate a motor 261. Two opposite sides of the motor 261 respectively extend outwards with a rotating shaft 262 for setting a wind impeller 263.

The first joint 13 is provided on each of the side surfaces 22, and the first joint 13 may be provided with at least two spaced openings. In this embodiment, the first joint 13 is configured with three spaced openings.

The two half shells 14 are respectively arranged on the two side surfaces 22 of the power seat 12. Each half-shell 14 includes at least an outer side surface 42, an inner side surface 44, a first combination section 46 extending from a part of the outer side surface 42 toward the power seat 12, and a second combination section 48 extending from another part of the outer side surface 42.

Each of the first combination sections 46 is assembled and arranged on the power seat 12 respectively so that each of the first combination sections 46 and the two side surfaces 22 of the power seat 12 respectively form an accommodation chamber 28 for accommodating the wind impeller 263.

Each of the second combination sections 48 is arranged correspondingly to each other so that the air outlet 15 is formed between the second combination sections 48 to respectively communicate with each of the accommodation chambers 28.

The two air inlets 16 are formed by an aperture penetrating the outer side surface 42 and the inner side surface 44 of each half-shell 14. Each of the air inlets 16 is communicated to each of the accommodation chambers 28 respectively.

The second joint 17 is corresponding to the first joint 13 and is provided on the outer side surface 42 of each half-shell 14. In this embodiment, the second joint 17 may be configured with an opening.

The coupling key 18 is arranged between the first joint 13 and the second joint 17 to connect the half shells 14 to the power seat 12. The coupling key 18 may be a screw or a rivet.

At least one guiding protrusion 19 is arranged on the inner side surface 461 of each first combination section and corresponds to the wind impeller 263.

In the present invention, by the design of the guiding protrusion 19, when the motor 261 drives the wind impeller 263, a fluid such as gas enters the chamber 28 from the two air inlets 16 and is transported to the air outlet 15. When the fluid passes through the position of the guiding protrusion 19, an effect of induced flow is generated to pressurize the fluid, making the present invention more efficient.

In the pressurization structure of the blower housing disclosed in this embodiment, the position of the guiding protrusion 19 is able to correspond to the position of the second joint 17 for forming a concave portion 19′ corresponding to the guiding protrusion 19 at the outer side surface 42 of each half-shell 14 corresponding to the position of the guiding protrusion 19. Further, one end of the concave portion 19′ is adjacent to the second joint 17. In the present invention, the coupling key 18 is used as a screw or a rivet to connect the first joint 13 as an opening and the second joint 17 as an opening. At this time, by the concave portion 19′, there is a better assembly work space to connect the half shells 14 to the power seat 12.

In the pressurization structure of the blower housing disclosed in this embodiment, the guiding protrusion 19 may be configured as a long protrusion in the axial direction of the rotating shaft 262. The concave portion 19′ may be formed as a groove. While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiment. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures. 

1. A blower housing pressurization structure, comprising at least: a power seat, including at least two opposite side surfaces, in which a through hole is formed between the middle sections of the two side surfaces for accommodating a motor of which the opposite sides respectively extend outward in the direction of the two side surfaces with a rotating shaft for installation of a wind impeller; a first joint, being arranged on each side surface; two half shells, in which each half shell is provided on the two sides of the power seat and includes at least an outer side surface, an inner side surface, a first combination section extending from a part of the outer side surface toward the power seat, and a second combination section extending from another part of the outer side surface, in which each of the first combination sections is assembled and arranged on the power seat respectively so that each of the first combination sections and the two side surfaces of the power seat respectively form an accommodation chamber for accommodating the wind impeller, each of the second combination sections is arranged correspondingly to each other so that the air outlet is formed between the second combination sections to communicate with each of the accommodation chambers; two air inlets, being formed by an aperture penetrating the outer side surface and the inner side surface of each half-shell and being communicated respectively to each accommodation chamber; a second joint, being corresponding to the first joint and provided on the outer side surface of each half-shell; a coupling key, being arranged between the first joint and the second joint to connect the half shells to the power seat; and at least one guiding protrusion, being arranged on the inner side surface of each first combination section and corresponds to the wind impeller.
 2. The blower housing pressurization structure as claimed in claim 1, wherein the first joint is configured with two spaced openings, the second joint is configured with an opening for an coupling key being selected from the group consisting of screws and rivets, and the position of the guiding protrusion corresponds to the position of the second joint for forming a concave portions corresponding to the guiding protrusion at the outer side of each half-shell corresponding to the position of the guiding protrusion.
 3. The blower housing pressurization structure as claimed in claim 1, wherein one end of the concave portion is adjacent to the second joint.
 4. The blower housing pressurization structure as claimed in claim 1, wherein the guiding protrusion is configured as a long protrusion in the axial direction of the rotating shaft.
 5. The blower housing pressurization structure as claimed in claim 2, wherein the guiding protrusion is configured as a long protrusion in the axial direction of the rotating shaft and the concave portion is set as a groove.
 6. The blower housing pressurization structure as claimed in claim 3, wherein the guiding protrusion is configured as a long protrusion in the axial direction of the rotating shaft and the concave is set as a groove. 